diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
index ddc26e383714..e8a96a60fdd6 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
@@ -2830,7 +2830,7 @@ void intel_cx0_powerdown_change_sequence(struct intel_encoder *encoder,
 	/* Update Timeout Value */
 	if (intel_de_wait_custom(display, buf_ctl2_reg,
 				 intel_cx0_get_powerdown_update(lane_mask), 0,
-				 XELPDP_PORT_POWERDOWN_UPDATE_TIMEOUT_US, 2, NULL))
+				 2, XELPDP_PORT_POWERDOWN_UPDATE_TIMEOUT_MS, NULL))
 		drm_warn(display->drm,
 			 "PHY %c failed to bring out of lane reset\n",
 			 phy_name(phy));
diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h b/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
index 635b35669348..62db0fd99f4a 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
@@ -80,7 +80,7 @@
 #define XELPDP_PCLK_PLL_DISABLE_TIMEOUT_US		20
 #define XELPDP_PORT_BUF_SOC_READY_TIMEOUT_US		100
 #define XELPDP_PORT_RESET_START_TIMEOUT_US		5
-#define XELPDP_PORT_POWERDOWN_UPDATE_TIMEOUT_US		100
+#define XELPDP_PORT_POWERDOWN_UPDATE_TIMEOUT_MS		2
 #define XELPDP_PORT_RESET_END_TIMEOUT			15
 #define XELPDP_REFCLK_ENABLE_TIMEOUT_US			1